{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:06:47.224527", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2025-Jul-27_to_2025-Jul-30_105.0_22.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2025070002913}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "July 27 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 30 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 71647.53709241097}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["China", "Viet Nam"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "Asia"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 22.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 105.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "105.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 103.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 108.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 23.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[108.53, 20.97], [108.0, 20.75], [107.75, 20.85], [107.5, 20.75], [107.25, 20.85], [107.0, 20.75], [106.47, 20.97], [106.32, 21.32], [106.25, 21.35], [106.18, 21.32], [106.03, 20.97], [105.68, 20.82], [105.53, 20.47], [105.0, 20.25], [104.47, 20.47], [104.32, 20.82], [104.0, 20.96], [103.5, 20.75], [102.97, 20.97], [102.75, 21.5], [102.88, 21.8], [102.47, 21.97], [102.25, 22.5], [102.47, 23.03], [103.0, 23.25], [103.25, 23.15], [103.5, 23.25], [103.75, 23.15], [104.0, 23.25], [104.25, 23.15], [104.32, 23.18], [104.47, 23.53], [105.0, 23.75], [105.53, 23.53], [105.68, 23.18], [105.89, 23.09], [106.0, 23.04], [106.5, 23.25], [107.03, 23.03], [107.18, 22.68], [107.25, 22.65], [107.5, 22.75], [107.75, 22.65], [108.0, 22.75], [108.53, 22.53], [108.75, 22.0], [108.65, 21.75], [108.75, 21.5], [108.53, 20.97]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.0, 20.75], [107.47, 20.97], [107.25, 21.5], [107.47, 22.03], [108.0, 22.25], [108.53, 22.03], [108.75, 21.5], [108.53, 20.97], [108.0, 20.75]]], [[[105.5, 23.25], [106.03, 23.03], [106.18, 22.68], [106.53, 22.53], [106.75, 22.0], [106.53, 21.47], [106.0, 21.25], [105.75, 21.35], [105.5, 21.25], [105.25, 21.35], [105.0, 21.25], [104.47, 21.47], [104.25, 22.0], [104.47, 22.53], [104.82, 22.68], [104.97, 23.03], [105.5, 23.25]]]]}, "2025-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[102.47, 21.97], [102.25, 22.5], [102.47, 23.03], [103.0, 23.25], [103.25, 23.15], [103.5, 23.25], [103.75, 23.15], [104.0, 23.25], [104.25, 23.15], [104.32, 23.18], [104.47, 23.53], [105.0, 23.75], [105.53, 23.53], [105.68, 23.18], [106.0, 23.04], [106.5, 23.25], [107.03, 23.03], [107.18, 22.68], [107.25, 22.65], [107.5, 22.75], [107.75, 22.65], [108.0, 22.75], [108.53, 22.53], [108.75, 22.0], [108.65, 21.75], [108.75, 21.5], [108.53, 20.97], [108.0, 20.75], [107.75, 20.85], [107.5, 20.75], [107.25, 20.85], [107.0, 20.75], [106.47, 20.97], [106.32, 21.32], [106.25, 21.35], [106.18, 21.32], [106.03, 20.97], [105.68, 20.82], [105.53, 20.47], [105.0, 20.25], [104.47, 20.47], [104.32, 20.82], [104.0, 20.96], [103.5, 20.75], [102.97, 20.97], [102.75, 21.5], [102.88, 21.8], [102.47, 21.97]]]]}, "2025-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[102.47, 21.97], [102.25, 22.5], [102.47, 23.03], [103.0, 23.25], [103.25, 23.15], [103.5, 23.25], [103.75, 23.15], [104.0, 23.25], [104.25, 23.15], [104.32, 23.18], [104.47, 23.53], [105.0, 23.75], [105.53, 23.53], [105.68, 23.18], [106.0, 23.04], [106.5, 23.25], [107.03, 23.03], [107.18, 22.68], [107.25, 22.65], [107.5, 22.75], [107.75, 22.65], [108.0, 22.75], [108.53, 22.53], [108.75, 22.0], [108.65, 21.75], [108.75, 21.5], [108.53, 20.97], [108.0, 20.75], [107.75, 20.85], [107.5, 20.75], [107.25, 20.85], [107.0, 20.75], [106.47, 20.97], [106.32, 21.32], 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2.2775445842194473]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.2572044373114295, 3.263965594189358, 4.213835354687262, 3.4161100701032296]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4159347843636134, 1.6532491475490785, 2.149940411664612, 1.65124446914387]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4985251065052025, 2.122325668383497, 2.7320579347537053, 2.2881900936337765]}}